{"id":"CVE-2026-74375","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1,raid10: fix deadlock in read error recovery path\n\nraid1d and raid10d may resubmit a split md cloned bio while handling\na read error","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1,raid10: fix deadlock in read error recovery path\n\nraid1d and raid10d may resubmit a split md cloned bio while handling\na read error. In this case, resubmitting…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= bb2a9acefaf9ce5bbc1e70f407e34599233d0243 < ea2d1d2ebf60b70b602a92261a567d5fc4575eab","Linux >= bb2a9acefaf9ce5bbc1e70f407e34599233d0243 < 38777f014c37972868f1733a651c85288bb8a757","Linux >= bb2a9acefaf9ce5bbc1e70f407e34599233d0243 < 7b15c24f805339a585cfe7d72f446b7e88b9bcc0","Linux 6.6"],"published":"2026-08-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:17:46.173","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74375","references":[{"url":"https://git.kernel.org/stable/c/38777f014c37972868f1733a651c85288bb8a757","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7b15c24f805339a585cfe7d72f446b7e88b9bcc0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ea2d1d2ebf60b70b602a92261a567d5fc4575eab","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74375.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-74375"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516747"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74375"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74375"},{"url":"https://lore.kernel.org/linux-cve-announce/2026081504-CVE-2026-74375-aa69@gregkh/T"},{"url":"https://git.kernel.org/stable/c/923a6f3172a362d6b2ff12386e376e0e47188f78"},{"url":"https://git.kernel.org/stable/c/0889242775340e2c5b69b1590bd71335dd4fdeda"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00168,"epssPercentile":0.06055,"ingestedAt":"2026-10-15T11:00:41.677Z","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-833"],"slug":"CVE-2026-74375","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1,raid10: fix deadlock in read error recovery path\n\nraid1d and raid10d may resubmit a split md cloned bio while handling\na read error. In this case, resubmitting the bio can lead to a deadlock\nif the array is suspended before md_handle_request() acquires an\nactive_io reference via percpu_ref_tryget_live().\n\nSince the cloned bio already holds an active_io reference,\ntrying to acquire another reference via percpu_ref_tryget_live()\ncan lead to a deadlock while the array is suspended.\n\nFix this by using percpu_ref_get() for md cloned bios.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74375.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":224249,"id":"CVE-2026-74375","ts":1792325037063,"field":"cvss","old":null,"new":"5.5"},{"seq":224248,"id":"CVE-2026-74375","ts":1792325037063,"field":"severity","old":"none","new":"medium"}]}